<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title>CSS Masking: mask-image: data url mask</title>
    <link rel="author" title="CJ Ku" href="mailto:cku@mozilla.com">
    <link rel="author" title="Mozilla" href="https://www.mozilla.org">
    <link rel="help" href="https://www.w3.org/TR/css-masking-1/#the-mask-image">
    <link rel="match" href="mask-image-5-ref.html">
    <meta name="assert" content="Test checks handling data url mask correctly.">
    <style type="text/css">
      div {
        background-color: purple;
        width: 50px;
        height: 50px;
      }
      div.mask-by-data-url {
        /* a 50x50 opaque blue rect */
        mask: url("");
      }
    </style>
  </head>
  <body>
    <div class="mask-by-data-url"></div>
  </body>
</html>
